1 # 1 #
>> 2 # alpha/Makefile
>> 3 #
2 # This file is subject to the terms and condit 4 # This file is subject to the terms and conditions of the GNU General Public
3 # License. See the file "COPYING" in the main 5 # License. See the file "COPYING" in the main directory of this archive
4 # for more details. 6 # for more details.
5 # 7 #
6 # Copyright (C) 2001 - 2005 Tensilica Inc. !! 8 # Copyright (C) 1994 by Linus Torvalds
7 # Copyright (C) 2014 Cadence Design Systems In <<
8 # 9 #
9 # This file is included by the global makefile <<
10 # architecture-specific flags and dependencies <<
11 <<
12 # Core configuration. <<
13 # (Use VAR=<xtensa_config> to use another defa <<
14 <<
15 variant-y := $(CONFIG_XTENSA_VARIANT_NAME) <<
16 <<
17 VARIANT = $(variant-y) <<
18 <<
19 ifneq ($(VARIANT),) <<
20 ifdef cross_compiling <<
21 ifndef CROSS_COMPILE <<
22 CROSS_COMPILE = xtensa_$(VARIANT)- <<
23 endif <<
24 endif <<
25 endif <<
26 <<
27 # Platform configuration <<
28 <<
29 platform-$(CONFIG_XTENSA_PLATFORM_XT2000) <<
30 platform-$(CONFIG_XTENSA_PLATFORM_ISS) <<
31 platform-$(CONFIG_XTENSA_PLATFORM_XTFPGA) <<
32 10
33 # temporarily until string.h is fixed !! 11 NM := $(NM) -B
34 KBUILD_CFLAGS += -ffreestanding -D__linux__ <<
35 KBUILD_CFLAGS += -pipe -mlongcalls -mtext-sect <<
36 KBUILD_CFLAGS += $(call cc-option,-mforce-no-p <<
37 KBUILD_CFLAGS += $(call cc-option,-mno-seriali <<
38 KBUILD_CFLAGS += $(call cc-option,-mno-fdpic,) <<
39 ifneq ($(CONFIG_KERNEL_ABI_CALL0),) <<
40 KBUILD_CFLAGS += -mabi=call0 <<
41 KBUILD_AFLAGS += -mabi=call0 <<
42 endif <<
43 12
44 KBUILD_AFLAGS += -mlongcalls -mtext-section-li !! 13 LDFLAGS_vmlinux := -static -N #-relax
45 KBUILD_AFLAGS += $(call cc-option,-mno-fdpic,) !! 14 CHECKFLAGS += -D__alpha__
>> 15 cflags-y := -pipe -mno-fp-regs -ffixed-8
>> 16 cflags-y += $(call cc-option, -fno-jump-tables)
>> 17
>> 18 cpuflags-$(CONFIG_ALPHA_EV4) := -mcpu=ev4
>> 19 cpuflags-$(CONFIG_ALPHA_EV5) := -mcpu=ev5
>> 20 cpuflags-$(CONFIG_ALPHA_EV56) := -mcpu=ev56
>> 21 cpuflags-$(CONFIG_ALPHA_POLARIS) := -mcpu=pca56
>> 22 cpuflags-$(CONFIG_ALPHA_SX164) := -mcpu=pca56
>> 23 cpuflags-$(CONFIG_ALPHA_EV6) := -mcpu=ev6
>> 24 cpuflags-$(CONFIG_ALPHA_EV67) := -mcpu=ev67
>> 25 # If GENERIC, make sure to turn off any instruction set extensions that
>> 26 # the host compiler might have on by default. Given that EV4 and EV5
>> 27 # have the same instruction set, prefer EV5 because an EV5 schedule is
>> 28 # more likely to keep an EV4 processor busy than vice-versa.
>> 29 cpuflags-$(CONFIG_ALPHA_GENERIC) := -mcpu=ev5
>> 30
>> 31 cflags-y += $(cpuflags-y)
>> 32
>> 33
>> 34 # For TSUNAMI, we must have the assembler not emulate our instructions.
>> 35 # The same is true for IRONGATE, POLARIS, PYXIS.
>> 36 # BWX is most important, but we don't really want any emulation ever.
>> 37 KBUILD_CFLAGS += $(cflags-y) -Wa,-mev6
>> 38
>> 39 libs-y += arch/alpha/lib/
>> 40
>> 41 # export what is needed by arch/alpha/boot/Makefile
>> 42 LIBS_Y := $(patsubst %/, %/lib.a, $(libs-y))
>> 43 export LIBS_Y
46 44
47 KBUILD_LDFLAGS += -m elf32xtensa !! 45 boot := arch/alpha/boot
48 46
49 ifneq ($(CONFIG_LD_NO_RELAX),) !! 47 #Default target when executing make with no arguments
50 KBUILD_LDFLAGS += --no-relax !! 48 all boot: $(boot)/vmlinux.gz
51 endif <<
52 49
53 CHECKFLAGS += -D$(if $(CONFIG_CPU_BIG_ENDIAN), !! 50 $(boot)/vmlinux.gz: vmlinux
54 <<
55 vardirs := $(patsubst %,arch/xtensa/variants/% <<
56 plfdirs := $(patsubst %,arch/xtensa/platforms/ <<
57 <<
58 KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/% <<
59 <<
60 KBUILD_DEFCONFIG := iss_defconfig <<
61 <<
62 libs-y += arch/xtensa/lib/ <<
63 <<
64 boot := arch/xtensa/boot <<
65 <<
66 all Image zImage uImage xipImage: vmlinux <<
67 $(Q)$(MAKE) $(build)=$(boot) $@ 51 $(Q)$(MAKE) $(build)=$(boot) $@
68 52
>> 53 bootimage bootpfile bootpzfile: vmlinux
>> 54 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
>> 55
69 archheaders: 56 archheaders:
70 $(Q)$(MAKE) $(build)=arch/xtensa/kerne !! 57 $(Q)$(MAKE) $(build)=arch/alpha/kernel/syscalls all
71 58
72 define archhelp 59 define archhelp
73 @echo '* Image - Kernel ELF image with !! 60 echo '* boot - Compressed kernel image (arch/alpha/boot/vmlinux.gz)'
74 @echo '* zImage - Compressed kernel ima !! 61 echo ' bootimage - SRM bootable image (arch/alpha/boot/bootimage)'
75 @echo '* uImage - U-Boot wrapped image' !! 62 echo ' bootpfile - BOOTP bootable image (arch/alpha/boot/bootpfile)'
76 @echo ' xipImage - XIP image' !! 63 echo ' bootpzfile - compressed kernel BOOTP image (arch/alpha/boot/bootpzfile)'
77 endef 64 endef
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